CN105003713B - A kind of ball valve sealing end cap - Google Patents
A kind of ball valve sealing end cap Download PDFInfo
- Publication number
- CN105003713B CN105003713B CN201510488832.7A CN201510488832A CN105003713B CN 105003713 B CN105003713 B CN 105003713B CN 201510488832 A CN201510488832 A CN 201510488832A CN 105003713 B CN105003713 B CN 105003713B
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- CN
- China
- Prior art keywords
- ball valve
- opening
- top plate
- air pump
- sealing ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of ball valve sealing end cap, including end cover body, the opening for the insertion of ball valve end is provided with end cover body, a circle groove is circumferentially provided with the side wall of opening, sealing ring is set in groove, top plate is movably set with opening, the detection stomata for connecting detection source of the gas is provided with top plate, in open bottom, piston air pump, in addition to gas passage, gas passage connection piston air pump and sealing ring are set.When the present invention inserts the opening set in end cover body in ball valve end, above-mentioned end leans top plate so that top plate compression piston air pump, piston air pump expands it to being inflated in the circumferentially disposed sealing ring of opening, so as to realize sealing of the ball valve end in insertion, said structure automatic gas-flow closure for realizing sealing ring while ball valve end is inserted, special external gas source need not be set, extra operating procedure is not produced.
Description
Technical field
The present invention relates to test apparatus field, more particularly to a kind of be used to sealedly seal ball valve end face
End cap.
Background technology
Industrial polyethylene (PE) ball valve is the important control unit of pipe network, therefore requires that pressurization carries out sealing property using preceding
Experiment.When prior art is tested ball valve, the outside at ball valve two ends is generally placed in using sealing gasket or sealing ring, while using cylinder
Or the force application apparatus such as jack is clamped in ball valve two ends, so that two ends of sealing gasket or sealing ring and ball valve form and sealed,
Its sealing property is examined toward being passed through compressed gas inside ball valve again.Said structure has following defect：1) pushed using jack
Pressing plate is carried out with cylinder clamping close so as to be sealed to ball valve and sealing ring is placed in outside ball valve two ends at ball valve two ends
Feng Shi, the dynamics of both is all more difficult to be controlled, and if the power for pushing or clamping is inadequate, may make sealing gasket and ball valve end
Sealing is not firm, so as to influence the accuracy of experiment, brings the erroneous judgement in quality, if the power for pushing or clamping is excessive, can make
Ball valve deforms, and causes ball valve end face out-of-flatness, so that can not form sealing between ball valve and pressing plate, brings in quality
Erroneous judgement, in addition, if the power for pushing or clamping is excessive, also can directly damage ball valve.
Based on drawbacks described above, number of patent application is " 201420783671.5 ", entitled " a kind of ball valve sealing end cap "
A kind of ball valve end face seal structure, including a cylinder end cover body, a location-plate and an inflatable are disclosed in patent of invention
Sealing ring, is relatively fixed between location-plate and end cover body by some connecting rods；Opened up on described end cover body circumference
One groove for housing inflation seal ring, inflation seal ring is arranged in groove.In use, ball valve two ends are stretched into
To end cover body position, then again by realizing its sealing to ball valve to being inflated in inflation seal ring.Due to end cap master
Body is not stressed, therefore measurement accuracy is improved.But still there is problem in above-mentioned technical pattern, specifically, due to needing
The special external gas source for being provided for inflating inflation seal ring, it is inconvenient when using, and the setting of extraneous source of the gas
Also so that equipment cost rises.
The content of the invention
For the deficiencies in the prior art, the invention provides a kind of ball valve sealing end cap.
The present invention is achieved through the following technical solutions：A kind of ball valve sealing end cap, including end cover body, at the end
The opening for the insertion of ball valve end is provided with lid main body, a circle groove is circumferentially provided with the side wall of the opening, described
Sealing ring is set in groove, top plate is movably set with the opening, is provided with the top plate for connecting detection gas
The detection stomata in source, piston air pump, in addition to gas passage are set in the open bottom, and the gas passage connects the work
Fill in air pump and the sealing ring, when the top plate slides onto it to the piston air pump direction to be compressed, the piston air pump
The sealing ring is inflated and causes its expansion.
In above-mentioned technical proposal, in addition to an elastic component, elastic component one end leans open bottom end, and the other end leans the top
Plate.
In above-mentioned technical proposal, step is provided with the opening sidewalls, top plate seal is provided with the step
Pad.
The present invention has the advantages that：When the present invention inserts the opening set in end cover body in ball valve end, on
State end and lean top plate so that top plate compression piston air pump, piston air pump makes to being inflated in the circumferentially disposed sealing ring of opening
It expands, so as to realize sealing of the ball valve end in insertion, said structure is realized close automatically while ball valve end is inserted
The gas-flow closure of seal, the special external gas source without setting, extra operating procedure is not produced.
Brief description of the drawings
Fig. 1 is dimensional structure diagram of the invention.
Fig. 2 is schematic cross-sectional view of the invention.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：It is a kind of referring to Fig. 1 to Fig. 2
Ball valve sealing end cap, including end cover body 1, are provided with the opening 10 for the insertion of ball valve end, in institute in the end cover body 1
The side wall for stating opening 10 is circumferentially provided with a circle groove 11, and sealing ring 2 is set in the groove 11, living in the opening 10
It is dynamic to be provided with top plate 3, the detection stomata 30 for connecting detection source of the gas is provided with the top plate 3, at 10 bottoms of the opening
Portion sets piston air pump 4, in addition to gas passage 6, and the gas passage 6 connects the piston air pump 4 and the sealing ring 2,
When the top plate 3 slides onto it to the direction of piston air pump 4 to be compressed, 4 pairs of the piston air pump sealing ring 2 is inflated
So that it expands.Stretched into use, ball valve one end to be aligned to the opening 10 set in end cover body 1, when ball valve end face withstands end
During lid 1 inside ceiling panel 3 of main body, continue to carry out so that the piston air pump 4 of the rear side of top plate 3 is compressed, and passes through gas channels 6 so that close
Seal 2 expands, and locked ball valve end is held tightly, so as to realize sealing.
Step 12 is provided with 10 side walls of the opening, top plate seal pad 7 is provided with the step 12.When described
Top plate 3 is passed to when leaning the top plate seal pad position, and the top plate seal pad is extruded, and furthermore achieved that end cap master
The sealing of body 1 and the ball valve end face.
Also include an elastic component 5, elastic component one end leans 10 bottoms of opening, and the other end leans the top plate 3.When having tested
Finish, ball valve recession, due to the effect of elastic component 5, top plate 3 and piston air pump 4 are dropped back simultaneously, and now sealing ring pressure release is shunk, and is made
Locked power must be held tightly to reduce, be easy to ball valve to dismantle, elastic component 5 can use spring, the cylinder that elastomeric material is made etc., this reality
Apply in example and the structure of elastic component 5 is not limited, enable to it to answer after top plate 3 is passed end as long as elastic component 5 is met
Position.
Claims (3)
1. a kind of ball valve sealing end cap, including end cover body (1), are provided with the end cover body (1) and are inserted for ball valve end
The opening (10) entered, it is characterised in that：A circle groove (11) is circumferentially provided with the side wall of the opening (10), in the groove
(11) sealing ring (2) is set in, top plate (3) is movably set with the opening (10), use is provided with the top plate (3)
In the detection stomata (30) of connecting detection source of the gas, piston air pump (4), in addition to gas passage are set in described opening (10) bottom
(6), the gas passage (6) connects the piston air pump (4) and the sealing ring (2), when the top plate (3) is to the piston
Air pump (4) direction slides onto it when being compressed, and the piston air pump (4) is inflated to the sealing ring (2) causes its expansion.
2. a kind of ball valve sealing end cap as claimed in claim 1, it is characterised in that：Also include an elastic component (5), elastic component one
End leans opening (10) bottom, and the other end leans the top plate (3).
3. a kind of ball valve sealing end cap as claimed in claim 1, it is characterised in that：It is provided with opening (10) side wall
Step (12), is provided with top plate seal pad (7) on the step (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488832.7A CN105003713B (en) | 2015-08-11 | 2015-08-11 | A kind of ball valve sealing end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488832.7A CN105003713B (en) | 2015-08-11 | 2015-08-11 | A kind of ball valve sealing end cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105003713A CN105003713A (en) | 2015-10-28 |
| CN105003713B true CN105003713B (en) | 2017-10-24 |
Family
ID=54376500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510488832.7A Active CN105003713B (en) | 2015-08-11 | 2015-08-11 | A kind of ball valve sealing end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105003713B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588686B (en) * | 2016-02-04 | 2018-04-10 | 宁波恒元精工管阀科技有限公司 | A kind of testing equipment for testing big-diameter ball valve sealing effectiveness |
| CN108871707B (en) * | 2018-08-22 | 2020-06-02 | 大连德泰港华燃气有限公司 | Leakage detection device of natural gas ball valve |
| CN109029870B (en) * | 2018-08-22 | 2020-05-29 | 良工阀门集团有限公司 | End cover of ball valve |
| CN111021448A (en) * | 2019-12-30 | 2020-04-17 | 长江南京航道工程局 | Pneumatic sealing device for side suction port of trailing suction dredger |
| CN110939167A (en) * | 2019-12-30 | 2020-03-31 | 长江南京航道工程局 | Bidirectional sealing device for side suction port of trailing suction dredger |
| CN110939170A (en) * | 2019-12-30 | 2020-03-31 | 长江南京航道工程局 | Side suction port air bag sealing device of trailing suction dredger |
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|---|---|---|---|---|
| CN201303269Y (en) * | 2008-10-13 | 2009-09-02 | 赵松辰 | Full-enclosed oil mist/oil gas recovery device for electric spindle |
| CN104165734A (en) * | 2014-07-08 | 2014-11-26 | 宁波市宇华电器有限公司 | End cover for testing sealing performance of ball valve |
| CN104819294A (en) * | 2015-03-17 | 2015-08-05 | 盐城工学院 | Electric vehicle charging port sealing structure with excellent waterproof function |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH535953A (en) * | 1970-12-04 | 1973-04-15 | Csepeli Tervezo Intezet | Internal pipe pressure testing machine, especially for pressure testing steel pipes with high pressure fluid |
| JP5140412B2 (en) * | 2007-12-28 | 2013-02-06 | 前澤給装工業株式会社 | Water pipe leak detection method and water stop cock with leak detection function |
| CN204043867U (en) * | 2014-07-08 | 2014-12-24 | 宁波市宇华电器有限公司 | The end cap of sealing property of ball valves test |
| CN204300460U (en) * | 2014-12-12 | 2015-04-29 | 杭州戴雷科技有限公司 | A kind of ball valve sealing end cap |
| CN104806903B (en) * | 2015-03-13 | 2017-01-25 | 浙江恒曼光电科技有限公司 | Dual drive rotary-type LED lamp tube |
| CN204424596U (en) * | 2015-03-16 | 2015-06-24 | 盐城工学院 | A kind of electric car power supply linear sealing syndeton |
| CN204922153U (en) * | 2015-08-11 | 2015-12-30 | 宁波恒元精工管阀科技有限公司 | Ball valve end cover |
-
2015
- 2015-08-11 CN CN201510488832.7A patent/CN105003713B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303269Y (en) * | 2008-10-13 | 2009-09-02 | 赵松辰 | Full-enclosed oil mist/oil gas recovery device for electric spindle |
| CN104165734A (en) * | 2014-07-08 | 2014-11-26 | 宁波市宇华电器有限公司 | End cover for testing sealing performance of ball valve |
| CN104819294A (en) * | 2015-03-17 | 2015-08-05 | 盐城工学院 | Electric vehicle charging port sealing structure with excellent waterproof function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105003713A (en) | 2015-10-28 |
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